Hard disk staggered spin-up method and system

Abstract

The invention discloses a hard disk staggered spin-up method and system. The method comprises the steps of 1, grouping hard disks of storage devices in a machine room, and writing group numbers into firmware of the storage devices; 2, supplying power to the machine room, thereby starting all the storage devices; 3, reading the group numbers after the storage devices are started by SASExpander chips of the storage devices; and 4, sending SPIN_UP signals to the hard disks of the storage devices in batches according to the group numbers after a predetermined time by the SASExpander chips, thereby starting motors of the hard disks. On the premise of not changing power supply logic of a power supply, the hard disks are grouped, the group numbers are written in the hard disks, and the SASExpander chips reads the group numbers and sends the SPIN_UP signals to the hard disks of the storage devices in batches to start the motors of the hard disks, so that hard disk staggered spin-up of all the devices in the machine room is realized; the realization method is relatively simple; batch staggered spin-up of the hard disks can be effectively realized; and serious consequences of power supply burnout, machine room fire and the like are avoided.

Description

technical field [0001] The invention relates to the field of storage technology, in particular to a method and system for hard disk interleaved startup. Background technique [0002] With the continuous development of big data and cloud computing, the storage density per unit volume of storage devices is increasing, storage costs are decreasing, and the number of storage devices used is increasing rapidly. [0003] In a storage device, there are generally many hard disks running at the same time. The power of the hard disk is about 10w when it is running, but the power of the hard disk may reach 30w when it is just started. Therefore, when the storage device is turned on, the instantaneous power of all hard disks starting at the same time will be very high, which may cause a great potential safety hazard. [0004] In order to solve this problem, the hard disk power-on method is generally adopted. That is: by controlling the power-on logic of the hard disk, power on the ha...

AI Technical Summary

Problems solved by technology

The power of the hard disk is about 10w when it is running, but the power of the hard disk may reach 30w when it is just started

Therefore, when the storage device is turned on, the instantaneous power of all hard disks starting at the same time will be very large, which may cause a great potential safety hazard.

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